FPGA Central - World's 1st FPGA / CPLD Portal

FPGA Central

World's 1st FPGA Portal

 

Go Back   FPGA Groups > NewsGroup > FPGA

FPGA comp.arch.fpga newsgroup (usenet)

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 05-07-2009, 08:53 PM
Jukka Marin
Guest
 
Posts: n/a
Default OpenCores CAN/Ethernet cores

Dear All,

I'm wondering whether to use 10/100 Ethernet and CAN controller chips
(two of each) in a new design or just put cores from OpenCores inside
an FPGA (which we will need in both cases). I'm (still) new to FPGA's
and have never used cores from OpenCores. Has anybody used these cores?
Are they reliable and ready for production use?

The third alternative is to buy commercial IP blocks, but I'm afraid
they might cost more than the old-fashioned way (the production volumes
will be relatively small).

I'd appreciate any facts and/or opinions.

-jm
Reply With Quote
  #2 (permalink)  
Old 05-07-2009, 10:01 PM
Mike Treseler
Guest
 
Posts: n/a
Default Re: OpenCores CAN/Ethernet cores

Jukka Marin wrote:

> I'm wondering whether to use 10/100 Ethernet and CAN controller chips
> (two of each) in a new design or just put cores from OpenCores inside
> an FPGA (which we will need in both cases).


If you are in a hurry, use the chips.

> I'm (still) new to FPGA's
> and have never used cores from OpenCores. Has anybody used these cores?


Not after looking at the code.

> Are they reliable and ready for production use?


Probably not.

> The third alternative is to buy commercial IP blocks, but I'm afraid
> they might cost more than the old-fashioned way (the production volumes
> will be relatively small).


That is correct.

> I'd appreciate any facts and/or opinions.


The above is 100% opinion.


-- Mike Treseler
Reply With Quote
  #3 (permalink)  
Old 05-07-2009, 10:11 PM
Joachim Förster
Guest
 
Posts: n/a
Default Re: OpenCores CAN/Ethernet cores

On Thu, 2009-05-07 at 19:53 +0000, Jukka Marin wrote:
> I'm wondering whether to use 10/100 Ethernet and CAN controller chips
> (two of each) in a new design or just put cores from OpenCores inside
> an FPGA (which we will need in both cases). I'm (still) new to FPGA's
> and have never used cores from OpenCores. Has anybody used these cores?
> Are they reliable and ready for production use?
>
> I'd appreciate any facts and/or opinions.


We are using OpenCores CAN controller for some time now (with a SoC on
Xilinx FPGA). Works great, using it for Low- and HighSpeed CAN
(transceiver next to FPGA) - nothing to complain about :-).
It has the well-known SJA1000 interface, ...

Joachim


Reply With Quote
  #4 (permalink)  
Old 05-08-2009, 08:51 AM
Haris
Guest
 
Posts: n/a
Default Re: OpenCores CAN/Ethernet cores

On May 8, 12:53*am, Jukka Marin <[email protected]> wrote:
> Dear All,
>
> I'm wondering whether to use 10/100 Ethernet and CAN controller chips
> (two of each) in a new design or just put cores from OpenCores inside
> an FPGA (which we will need in both cases). *I'm (still) new to FPGA's
> and have never used cores from OpenCores. *Has anybody used these cores?
> Are they reliable and ready for production use?
>
> The third alternative is to buy commercial IP blocks, but I'm afraid
> they might cost more than the old-fashioned way (the production volumes
> will be relatively small).
>
> I'd appreciate any facts and/or opinions.
>
> * -jm


You can look at the ehternet cores from MANTARO NETWORKS (http://
www.mantaro.com/services/fpga.htm). They have very good costs for
there cores
as they have developed them from there partners in low costs
Reply With Quote
  #5 (permalink)  
Old 05-09-2009, 06:13 AM
Richard Pennington
Guest
 
Posts: n/a
Default Re: OpenCores CAN/Ethernet cores

Jukka Marin wrote:
> Dear All,
>
> I'm wondering whether to use 10/100 Ethernet and CAN controller chips
> (two of each) in a new design or just put cores from OpenCores inside
> an FPGA (which we will need in both cases). I'm (still) new to FPGA's
> and have never used cores from OpenCores. Has anybody used these cores?
> Are they reliable and ready for production use?
>
> The third alternative is to buy commercial IP blocks, but I'm afraid
> they might cost more than the old-fashioned way (the production volumes
> will be relatively small).
>
> I'd appreciate any facts and/or opinions.
>
> -jm

Jukka,

Whose FPGA are you using?

-Rich
Reply With Quote
  #6 (permalink)  
Old 05-12-2009, 03:30 PM
Tom
Guest
 
Posts: n/a
Default Re: OpenCores CAN/Ethernet cores

On May 8, 6:11*am, Joachim Förster <[email protected]> wrote:
> We are using OpenCores CAN controller for some time now (with a SoC on
> Xilinx FPGA). Works great, using it for Low- and HighSpeed CAN
> (transceiver next to FPGA) - nothing to complain about :-).
> It has the well-known SJA1000 interface, ...


I agree, it works very well.

You need to read the SJA1000 data sheet to find out how to use it.

And you will need to interface the FPGA I/O to some kind of analogue
transceiver chip to drive the bus e.g. TJA1040.

-T
Reply With Quote
  #7 (permalink)  
Old 05-13-2009, 02:41 PM
Jukka Marin
Guest
 
Posts: n/a
Default Re: OpenCores CAN/Ethernet cores

On 2009-05-09, Richard Pennington <[email protected]> wrote:
>> I'm wondering whether to use 10/100 Ethernet and CAN controller chips
>> (two of each) in a new design or just put cores from OpenCores inside
>> an FPGA (which we will need in both cases). I'm (still) new to FPGA's
>> and have never used cores from OpenCores. Has anybody used these cores?
>> Are they reliable and ready for production use?

>
> Whose FPGA are you using?


We are going to use Altera Cyclone III (if possible, since we have used
these chips before).

-jm
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Data width change in opencores Ethernet MAC [email protected] FPGA 1 10-13-2005 12:52 PM
Data width change in opencores Ethernet MAC [email protected] Verilog 0 10-13-2005 10:59 AM
Testbench failures for Opencores Ethernet mac [email protected] FPGA 0 09-19-2005 11:01 AM
Testbench failures for Opencores Ethernet mac [email protected] Verilog 0 09-19-2005 11:01 AM
ethernet EMAC cores available for Microblaze kurapati FPGA 0 07-19-2005 01:16 AM


All times are GMT +1. The time now is 07:01 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0
Copyright 2008 @ FPGA Central. All rights reserved